Not quite directly through my website, but indirectly via my newsletter, that points to my website. It happened on two occasions, the most interesting of which was on a commission to do a piece of research on data uses in a sector that wasn't directly mine back then.
The person who contacted me was a subscriber and I didn't know them personally. I had written a short paragraph in my newsletter about a recent piece of data research I had carried out; something must have caught their attention as they went looking for it on my website, then contacting me saying "I'd like you to do the same thing for my organisation, can we talk?".